A strange dream, can anyone tell me what it means?

I had a dream about a guy that I know....he's about twice my age but really nice and we have a platonic relationship, Anyways in my dream I don't know where I am or what I'm doing but I meet him. He's really nice so we begin talking then suddenly I'm running from him at my school. I make it to my school's main office and there is the secretary and another student which I can't really remember. For some reason there isn't a lock on the office door so I ask them to help me move stuff in front of it but they don't. They don't think it's a big deal but I know he's going to try to hurt me physical/ual so I start moving stuff by myself as he's trying to open the door then I wake up.